| Project/Area Number |
09650794
|
|---|
| Research Category |
Grant-in-Aid for Scientific Research (C)
|
| Allocation Type | Single-year Grants |
|---|
| Section | 一般 |
|---|
| Research Field |
Material processing/treatments
|
|---|
| Research Institution | Himeji Institute of Technology |
|---|
Principal Investigator |
SEO Kenji Himeji Institute of Technology, Dep. of Mech. Eng., Professor, 工学部, 教授 (70047603)
|
|---|
| Co-Investigator(Kenkyū-buntansha) |
KUSAKA Masahiro Himeji Institute of Technology, Dep. of Mech. Eng., Assistant, 工学部, 助手 (40244686)
|
|---|
| Project Period (FY) |
1997 – 1999
|
| Project Status |
Completed (Fiscal Year 1999)
|
| Budget Amount *help |
¥3,800,000 (Direct Cost: ¥3,800,000)
Fiscal Year 1999: ¥600,000 (Direct Cost: ¥600,000)
Fiscal Year 1998: ¥900,000 (Direct Cost: ¥900,000)
Fiscal Year 1997: ¥2,300,000 (Direct Cost: ¥2,300,000)
|
|---|
| Keywords | Surface Modification Thin Films / Ffracture Mechanics / Debonding Strength / Energy Release Rate / Reinforcement Plate / Peel Test / Electroless Nickel Plating Film / Paint Film / 接着強度 / 窒化チタン薄膜 / ピ-ル試験 |
|---|
| Research Abstract |
In this study, a new method for evaluating the debonding strength of the interface between a surface modification film and a substrate has been developed for improvement of reliability of the surface modification thin films. An electroless nickel plating film on ABS resin plate and a paint film on a concrete surface are used as the surface modification films. Peel tests on the surface modification films are carried out. Then, a reinforcement plate is attached to the surface modification film so that it does not break during the peel test. The debonding load, the debonding length and the displacement of the loading point are measured during the peel test. We are particularly interested in the energy release rate (G value) based on the fracture mechanics as a parameter to evaluate the debonding strength of the surface modification film. The critical energy release rage (GィイD2cィエD2 value) is obtained from the debonding load and the displacement of the loading point measured during the peel test. As a result, provided that the interface conditions remain the same, the critical energy release rate in the propagation of debonding is constant and unaffected by the reinforcement plate. Therefore, the debonding strength of the surface modification film can be rationally evaluated by using the critical energy release rate. It is cleared that the debonding strength of a plating film increases with the etching time of ABS resin plate. Furthermore, the influence of the environment on psint films are elucidated by obtaining the critical energy release rate.
|
